Apparatus and method to secure an adaptor to a reduced-sized memory card

ABSTRACT

An apparatus and method of removably interconnecting a reduced-sized memory card with an extension member. The locking mechanism may be formed in a peripheral end portion of the reduced-sized memory card that may include an entry surface and a ledge. The extension member may include a biasing portion that slidably engages the entry surface and removable interconnects with the ledge. With this arrangement, the extension member may easily be secured and removed from the reduced-sized memory card, allowing easy interchangeability between a standard-sized socket of one electronic device and a reduced-sized socket of another electronic device.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to the use of integrated circuitcards and, more particularly, the present invention relates to methodsand apparatus of removably securing an adaptor to an integrated circuitmemory card.

2. State of the Art

In the field of computer technology, multimedia applications have asteadily growing market share. A medium known in the art forretrofitting various electronic devices for such multimedia applicationsis the memory card. Examples of various memory cards in the marketinclude the MultiMedia Card (“MMC”), SmartMedia, Miniature Card andMemory Stick.

The memory card is generally a substantially rectangular, thin, planarcard containing a memory chip and integrated circuitry sealed therein.The memory card typically includes packaging of a thermoset resin with aplurality of terminals in a line exposed on a face and proximate an edgeof the memory card. One corner of the memory card is typically beveledso as to prevent the card from being inserted incorrectly into anelectronic system.

There are various types of electronic devices that incorporate thememory card, such as personal digital assistants (“PDAs”), cell phones,digital cameras, printers and desk-top and lap-top computers. Differentbrands of such electronic devices utilize particular types of memorycards, each such electronic device including a memory card socketconfigured to receive a corresponding memory card with correspondingdimensions. For example, the dimensions of the MMC is 24×32×1.4 (mm).The memory card socket in an electronic device, such as a digitalcamera, made to receive the MMC corresponds to the dimensions of suchMMC. The same is true for the SmartMedia card with dimensions of37×45×0.76 (mm), the Miniature Card with dimensions of 38×33×3.5 (mm),and the Memory Stick with dimensions of 50×21.5×2.8 (mm).

One of the advantages of the memory card is its interchangeability inbeing utilized in different types of electronic devices. For example, adigital camera configured to receive the MultiMedia Card may beconfigured to store digital photographs. That same card may then beinserted into a computer or a device that is itself then inserted orconnected to a computer to download the digital photographs, or suchmemory card may be utilized in a cell phone for one function and thentransferred to another electronic device such as a personal dataassistant for a second function. Thus, the success of the memory card inthe market has been largely due to the interchangeability of the memorycard from one electronic device to another.

Recently, some of the more ultra compact electronic devices, such ascell phones, digital cameras, etc., have introduced memory card socketsdimensioned as half-sized sockets for inserting a half-sized memorycard, such term also encompassing a memory card with reduced dimensionswhich is not necessarily half the size of the standard memory card. Sucha half-sized memory card is being developed by EEMS in Rieti, Italy, andis referred to as an RS-MMC. Although such a half-sized memory cardprovides a much more compact card for use with an ultra compactelectronic device, the half-sized memory card is not practical in itsinterchangeability in those electronic devices configured to receive thestandard-sized memory card. For example, the half-sized memory card maybe functional in the standard-sized memory card socket; however, thestandard-sized socket may not be configured to allow easy removabilityof the half-sized memory card from such standard-sized socket. In otherwords, the half-sized memory card may be inserted into the socket andfunction properly, but because of its reduced size, the standard-sizedsocket may not release the half-sized memory card so that it isremovable from the electronic device, or may prevent easy access to thehalf-sized memory card for removal from the socket.

This problem has been recognized by EEMS of Rieti, Italy, which has beendeveloping an adaptor for attaching to their half-sized memory card. Thehalf-sized memory card includes three connector recesses in an endportion thereof. Each connector recess includes a male protrusionprojecting from a surface in the recess. The male protrusion isconfigured to correspond and lock to the adaptor. Due to the alreadylimited size of the memory card, such a male protrusion is extremelysmall and, therefore, the male protrusion is susceptible to breaking.Failure of the male protrusion may result from fatigue due toreoccurring cycles of removing and reattaching the adaptor with thehalf-sized memory card when interchanging between electronic devicesequipped with half-sized sockets and standard-sized sockets. Forexample, due to the minute size of the male protrusion, it isanticipated that such a male protrusion may only have a cyclic life ofabout one or two cycles. Furthermore, replacing the half-sized memorycard due to male protrusion fatigue and failure is expensive incomparison to the cost of replacing, for example, the adaptor.

Therefore, it would be advantageous to provide a fatigue-resistantlocking mechanism between a half-sized memory card and an adaptor toaccommodate the potential for numerous cycles of interchanging theadaptor with the half-sized memory card. It would also be advantageousto provide a locking mechanism configuration wherein the least potentialfor failure is in the half-sized memory card.

BRIEF SUMMARY OF THE INVENTION

The present invention relates to methods and apparatus for removablyinterconnecting a memory card to an extension member. The presentinvention is directed to a locking mechanism formed in an end portion ofthe memory card, allowing easy removable interconnection with theextension member.

The memory card includes a first surface and a second surface and aperipheral side defining a thickness between the first surface andsecond surface. At least one of the first surface and the second surfaceincludes terminals exposed thereon, which terminals interconnect withintegrated circuitry within the memory card. According to the presentinvention, the locking mechanism includes at least one recess defined inthe first surface of the end portion and at least one recess defined inthe second surface of the end portion. The at least one recess in thefirst surface includes an entry surface and a ledge, wherein the entrysurface extends from the peripheral side to the ledge.

The extension member includes a first surface and a second surface withresilient biasing portions extending from an end of the extension memberin the plane thereof. At least one of the biasing portions includes anend portion configured to slidably engage with the entry surface in atleast one of the recesses and also removably interconnect with the ledgein the at least one recess. With this arrangement, the memory card isremovably interconnected to the extension member, by which the entrysurface is configured to slidably engage with at least one biasingportion extending from the extension member, and the ledge is configuredto removably secure the at least one biasing portion extending from theextension member. Such removable interconnection between the memory cardand the extension member allows the memory card to be easilyinterchangeable between an electronic device having a standard-sizedmemory card socket and another electronic device having a reduced-sizedmemory card socket by simply either securing or removing the memory cardfrom the extension member.

In an aspect of the present invention, the entry surface may include aramp extending to the ledge. The entry surface may be a substantiallyprotrusion-free surface and/or a substantially unobstructed surface tothe extent that the entry surface is configured to slidably receive thebiasing portion from the peripheral side to the ledge of the recess.

In a first embodiment, the at least one recess in the first surface andthe second surface includes an upper floor comprising the entry surfaceand a lower floor, which each sit between lateral side walls. The upperfloor and the lower floor are separated by a ledge wall and the lowerfloor extends to a back wall. This first embodiment includes tworecesses in the first surface and one recess in the second surface,which are each configured to slidably engage and removably interconnectwith at least one biasing portion extending from the extension member.The recess in the second surface is arranged between the two recesses inthe first surface. With this arrangement, the two recesses in the firstsurface and the one recess in the second surface provide a three-pointengagement with the extension member.

In a second embodiment, or variation of the first embodiment, the atleast one recess in the first surface and the second surface are similarto the recesses of the first embodiment, except the second embodimentincludes one recess in the first surface and one recess in the secondsurface in a staggered relationship for a two-point engagement with theextension member.

In a third embodiment, there are two recesses in the first surfacesimilar to the first embodiment, except instead of a lower floor, thereis a through hole provided for each of the two recesses which extends tothe second surface of the memory card. The recess in the second surfaceincludes a floor extending to lateral side walls and a back wall and iscentrally located at the end portion of the package between the throughholes. Each of the recesses in the first surface and the second surfaceare configured to slidably engage with biasing portions extending fromthe extension member, wherein the two recesses in the first surface areconfigured to removably interconnect with end portions on the biasingportions which extend into the through hole in the interconnectedposition. The two recesses in the first surface and the single recess inthe second surface provide a three-point contact including two points ofengagement and an alignment point with the extension member.

In the fourth embodiment, there are two recesses in the first surfaceand one recess in the second surface. The two recesses in the firstsurface include a floor defined by lateral sidewalls and a back wall. Inthis embodiment, one of the lateral side walls in each of the tworecesses includes the entry surface and the ledge, wherein a biasingportion slidably engages one of the lateral side walls and interconnectswith the ledge therein. The recess in the second surface may include afloor extending to lateral side walls and a back wall, which recess isconfigured to slidably engage with at least one of the biasing portionsextending from the extension member. In this manner, the fourthembodiment provides a three-point engagement with the extension member.

The fifth embodiment of the present invention is configured such thatthe end portion of the memory card includes a track for slidablyengaging with the extension member. The track is formed as a slotdefined from one peripheral side to an opposing peripheral side.Alternatively, the slot may fall short from extending through to theopposing peripheral side. The slot may include a track recess extendingalong a length of the slot. With this fifth embodiment, the extensionmember also includes a track member along an end portion of theextension member. The track member is sized and configured totransversely slide into the slot in the memory card for reversiblyinterconnecting therewith.

In another aspect of the present invention, the memory card withattached extension member is inserted in a memory card socket in anelectronic system. In the electronic system, the memory card iselectrically connected to a processor device which electricallycommunicates with an input device and an output device.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

While the specification concludes with claims particularly pointing outand distinctly claiming that which is regarded as the present invention,the advantages of this invention may be ascertained from the followingdescription of the invention when read in conjunction with theaccompanying drawings, wherein:

FIGS. 1 and 2 illustrate a simplified perspective view of areduced-sized memory card, depicting a locking mechanism on a peripheralfront side surface of the card and a peripheral back side surface of thecard, respectively, according to a first embodiment of the presentinvention;

FIG. 3 illustrates a simplified perspective view of an extension memberand the reduced-sized memory card in an unassembled position, accordingto the first embodiment of the present invention;

FIG. 4 illustrates a simplified perspective view of the reduced-sizedmemory card assembled with the extension member, according to the firstembodiment of the present invention;

FIG. 4 a illustrates a cross-sectional view taken along line 4 a in FIG.4, depicting a biasing portion of the extension member engaged with arecess portion of the reduced-sized memory card, according to the firstembodiment of the present invention;

FIGS. 5 and 6 illustrate a simplified perspective view of areduced-sized memory card, depicting a locking mechanism on a peripheralfront side surface of the memory card and a peripheral back side surfaceof the memory card, respectively, according to a second embodiment ofthe present invention;

FIG. 7 illustrates a simplified perspective view of the reduced-sizedmemory card assembled with the extension member, according to the secondembodiment of the present invention;

FIGS. 8 and 9 illustrate a simplified perspective view of areduced-sized memory card, depicting a locking mechanism on a peripheralfront side surface of the card and a peripheral back side surface of thecard, respectively, according to a third embodiment of the presentinvention;

FIG. 10 illustrates a simplified perspective view of an extension memberand the reduced-sized memory card in an unassembled position, accordingto the third embodiment of the present invention;

FIG. 11 illustrates a simplified perspective view of the reduced-sizedmemory card assembled with the extension member, according to the thirdembodiment of the present invention;

FIG. 11 a illustrates a cross-sectional view taken along line 11 a inFIG. 11, depicting a biasing portion of the extension member engagedwith a recess portion of the reduced-sized memory card, according to thethird embodiment of the present invention;

FIGS. 12 and 13 illustrate a simplified perspective view of areduced-sized memory card, depicting a locking mechanism on a peripheralfront side surface of the memory card and a peripheral back side surfaceof the memory card, respectively, according to a fourth embodiment ofthe present invention;

FIG. 14 illustrates a simplified perspective view of an extension memberand the reduced-sized memory card in an unassembled position, accordingto the fourth embodiment of the present invention;

FIGS. 15 and 16 illustrate a simplified perspective view of a front sidesurface and a back side surface, respectively, of a reduced-sized memorycard, depicting a locking mechanism on a peripheral portion of thememory card, according to a fifth embodiment of the present invention;

FIG. 17 illustrates a simplified perspective view of an extension memberand the reduced-sized memory card in an unassembled position, accordingto the fifth embodiment of the present invention;

FIG. 18 illustrates a simplified side view of the reduced-sized memorycard with the extension member assembled thereto being inserted into anelectronic system, according to the present invention; and

FIG. 19 illustrates a simplified block diagram of a semiconductorassembly of the present invention integrated in an electronic system.

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be hereinafter described withreference to the accompanying drawings. It should be understood thatthese illustrations are not to be taken as actual views of any specificapparatus or method of the present invention, but are merely exemplary,idealized representations employed to more clearly and fully depict thepresent invention than might otherwise be possible. Additionally,elements and features common between the drawing figures retain the samenumerical designation.

FIGS. 1 and 2 illustrate respective front and back perspective views ofa memory card 110 or otherwise referred to as a half-sized orreduced-sized memory card due to its reduced size from a standard-sizedmemory card. Memory card 110 may be configured as, but reduced in size(elongation) from, any type of memory card, such as the standard-sizedmemory cards including MultiMedia Card (“MMC”) and Memory Stick.

Memory card 110 is a generally rectangular, thin, planar card havingintegrated circuitry sealed therein and packaged with, for example, athermoset resin as known in the art. The memory card 110 includes afront surface 112 and a back surface 114 thereof. The memory card 110includes a peripheral side 116 defining a card thickness between thefront surface 112 and the back surface 114 of the memory card 110. Thefront surface 112 may include a plurality of terminals 118 (typicallyseven terminals) exposed thereon which interconnect to the integratedcircuitry in the memory card 110. One corner 119 of the card 110 may bebeveled so as to prevent the card from being inserted into its intendedelectronic device in an incorrect rotational orientation. Suchelectronic devices may include personal digital assistants, digitalcameras, cell phones, MP3 players, printers and desk-top and lap-topcomputers, or any other electronic device or system configured to use amemory card 110.

According to a first embodiment of the present invention, a lockingmechanism in the memory card 110 comprises recesses formed in the frontsurface 112 and the back surface 114 thereof. In particular, at an endportion of the memory card 110 (opposite the end having the terminals118), the front surface 112 may include front recesses 120 formedpartially in the peripheral side 116 and partially in the front surface112 of the memory card 110. Also at the end portion of the memory card110 on the back surface 114 thereof, a back recess 130 may be formedpartially in the peripheral side 116 and partially in the back surface114 of the memory card 110. As depicted, the back recess 130 iscentrally arranged between two front recesses 120 in the end portion ofthe memory card 110.

The front recesses 120 may be defined with an upper floor 122, a lowerfloor 129, lateral side walls 124 and a back wall 128. The upper floor122 may ramp upwardly in elevation from the entrance of the front recess120, as shown. The upper floor 122 in the front recesses 120 extendslaterally to the lateral side walls 124 and extends from the peripheralside 116 to a ledge 126. The ledge 126 separates the upper floor 122 andlower floor 129, wherein the ledge 126 extends to a ledge wall 127 (seeFIG. 4(a)) and then to the lower floor 129. The lower floor 129 may bedefined by the lateral side walls 124, the back wall 128, and the ledgewall 127.

The back recess 130 may be configured similarly to the front recesses120, wherein the back recess 130 may include an upper floor 132, a lowerfloor 139, lateral side walls 134 and a back wall 138 with a ledge 136separating the upper floor 132 and the lower floor 139. Alternatively,the back recess 130 may also be formed with a single, flat floorextending to lateral side walls 134 and back wall 138.

Turning to FIG. 3, an extension member 140 and the memory card 110 areillustrated in an unassembled position. Extension member 140 includes afirst surface 142 and a second surface 144 with a peripheral sidesurface 145 therebetween. Extending from one end of the extension member140 at the peripheral side surface 145 and generally in the plane of theextension member may be one or more biasing members or portions 146.Preferably, there is a biasing portion 146 configured to removablyinterconnect with each corresponding recess, i.e., front recesses 120and back recess 130, in the memory card 110. Each biasing portion 146may include an end portion 148, which is preferably structured as, butnot limited to, a rounded protrusion that may extend outwardly from aninner surface 147 (see FIG. 4(a)) of the biasing portion 146 and mayextend along a lateral width of the biasing portion 146.

The extension members 140 and biasing portions 146 may be formed fromany known flexibly resilient material, such as a polymeric material, acomposite material, or spring steel, and combinations thereof. Thebiasing portions 146 may be formed separately from and then attached tothe body of extension member 140 or the biasing portions 146 andextension member 140 may be formed together as a single unit using amold such as an injection mold or formed by any other suitable methodknown in the art. For example, the biasing portions 146 may comprisemembers of appropriately formed spring steel attached to the body ofextension member 140 by injection molding or over molding the body ontoextensions of biasing members 146 into the mold cavity.

As illustrated in FIGS. 3 and 4, the memory card 110 and extensionmember 140 may be removably interconnected, which may be by manual orautomated means as shown by arrows F_(A) and F_(S) depicted thereinrespectively indicating connection and disconnection to recesses appliedin the plane of the mutually aligned memory card 110 and extensionmember 140. With the biasing portions 146 being flexibly resilient awayfrom the plane of the extension member 140, such biasing portions 146may mate with the corresponding front recesses 120 and back recess 130.To interconnect the biasing portions 146 with the correspondingrecesses, the end portion 148 for each biasing portion 146 aligns withand slidably engages the corresponding upper floors 122 and 132 in thefront and back recesses 120 and 130, respectively. The end portions 148may be moved with an attaching force F_(A), slidably engaging with therespective front and back recesses 120 and 130 until the end portions148 move over the respective ledges 126 and 136 in the recesses 120 and130, to thereby removably interconnect with the recesses 120 and 130 ina fully engaged position, as illustrated in FIG. 4. The first embodimenttherefore provides a three-point engagement between the front recesses120 and back recess 130 of the memory card 110 and the biasing portions146 of the extension member 140.

As shown in FIG. 4 a, taken along line 4 a in FIG. 4, a portion of theinner surface 147 of the biasing portion 146 directly abuts with theupper floor 122 in the recess 120 with the end portion 148 in the fullyengaged position. To succeed to such position, the end portion 148slidably engages the upper floor 122 until the end portion 148 slidesover the ledge 126 and interconnects therewith. The upper floor 122 maybe substantially continuously planar or may be arcuate in a shallowcurve of increasing steepness toward ledge 126, and ramps upward towardthe ledge 126, resulting in the biasing portion 146 being forcedupwardly away from the plane of the extension member 140 toward theupper floor 122 with increasing force as the end portion 148 movestoward the ledge 126. Alternatively, the upper floor 122 may also beformed substantially flat without a sloping ramp shape and be configuredso that the biasing portion 146 maintains a substantially constantbiasing force as the end portion 148 slidably engages the upper floor122 and moves into the fully engaged position. The upper floor 122preferably does not include any impeding protrusions or abutments to theextent that such protrusions and abutments would prevent the end portionfrom sliding smoothly thereon into the fully engaged position.

It can therefore be well appreciated by one of ordinary skill in the artthat the front recesses 120 and back recess 130 of the present inventionenables reliable removable interconnection between the memory card 110and the extension member 140. Specifically, the rounded structureprotruding outward beyond the inner surface 147 of each of the biasingportions 146 provides interconnection to the recesses 120 and 130 viaengagement with the ledge 126 as well as allowing the extension member140 to be easily removed from the memory card 110 by applying aseparating force Fs, as shown by the outward arrows in FIG. 4, toovercome the resilient bias of biasing portions 146.

The dimensions of the combined memory card 110 and extension member 140,designated as 100, are substantially equivalent to a standard-sizedmemory card, such as the dimensions of the MMC and Memory Stick. Thus,according to the present invention, the memory card 110 is removablyinterconnectable to the extension member 140 so that the memory card 110with attached extension member 140 may be easily inserted into andremoved from the standard-sized socket made for receiving thestandard-sized memory card 100. Further, by simply removing theextension member 140, the reduced-in-size memory card 110 alone may beutilized in more compact, reduced-sized sockets. As such, the memorycard 110 is interchangeable between the more compact reduced-sizedsockets and the standard-sized sockets by simply connecting and removingthe extension member 140.

FIGS. 5 and 6 illustrate a second embodiment or variation of therecesses of the first embodiment according to the present invention. Inparticular, the second embodiment is similar to the first embodiment inevery respect, except there is only one front recess 220 and one backrecess 230. In this embodiment, the memory card 210 includes a frontsurface 212 and back surface 214 with a peripheral side 216 therebetweenand terminals exposed 218 on the front surface 212. The front recess 220is provided partially in the peripheral side 216 and partially in thefront surface 212 at an end portion of the memory card 210. Likewise,the back recess 230 is provided partially in the peripheral side 216 andback surface 214 at an end portion of the memory card 210. The front andback recesses 220 and 230 are similar in size and in a staggeredrelationship. Similar to the first embodiment, the front recess 220 andback recess 230 each include a respective upper floor 222, 232 and lowerfloor 229, 239 extending to a ledge 226, 236 between lateral side walls224, 234, the lower floor 229, 239 extending to a ledge wall (not shown)and back wall 228, 238.

FIG. 7 illustrates the memory card 210 removably interconnected to anextension member 240 in the fully engaged position to form, asdesignated as 200, an assembly equivalent in size to a standard-sizedmemory card. The extension member 240 includes a first surface 242 andsecond surface 244 with biasing portions 246 extending from a peripheralside 245 in the plane of the extension member 240. The biasing portions246 include end portions 248 configured the same as end portions 148 ofthe first embodiment at an end thereof to bias against the respectiveupper floors 222, 232 in the front and back recesses 220 and 230 andconfigured to removably interconnect with a corresponding front recess220 and back recess 230 in the memory card 210, similar to the firstembodiment. Further, as in the first embodiment, the extension member240 and memory card 210 are easily interconnected via an attaching forceF_(A) and separated by applying a separating force F_(S). The frontrecess 220 and back recess 230 arrangement of the second embodimentessentially provides a two-point engagement with the extension member240.

FIGS. 8 and 9 illustrate respective front and back perspective views ofa third embodiment of the locking mechanism in the memory card 310,depicting two front recesses 320 and one back recess 330 in therespective front surface 312 and back surface 314 of the memory card310. Front surface 312 includes terminals 318 thereon. The frontrecesses 320 each include a floor 322, similar to the upper floor in thefirst embodiment, wherein the floor extends in width to lateral sidewalls 324 and extends from the peripheral side 316 to a ledge 326. Theledge 326 drops off into a through hole 328 extending to the opposingback surface 314. The back recess 330 may include a floor 332 extendingto lateral side walls 334 and a back wall 338. As discussed furtherbelow, the floor 332 may be flat and extend in the plane of extensionmember 340. The back recess 330 may be arranged centrally at an endportion of the back surface 314 disposed between the through holes 329,which through holes 329 extend from the two front recesses 320 of thememory card 310.

FIGS. 10 and 11 illustrate the extension member 340 and the memory card310 in an unassembled position and a fully engaged position,respectively, according to the third embodiment of the presentinvention. As before, the extension member 340 includes a first surface342 and second surface 344 with biasing portions 346 extending from aperipheral side 345 of the extension member 340 and in the general planethereof. The biasing portions 346 corresponding with the front recesses320 include end portions 348 which may be structured as a protrusion orpawl extending along the width of the biasing portion 346 at an endthereof. By applying an attaching force F_(A), such end portions 348 areconfigured to slidably engage with the floor 322 of the front recesses320 until sliding over the ledge 326, wherein the end portions 348extend into the through holes 329 for removable interconnection of theextension member 340 to the memory card 310 to provide an assembly 300equivalent in size to a standard-sized memory card. Likewise, aseparating force F_(S) may be applied to the memory card 310 andextension member 340 for removal thereof.

FIG. 11 a is a cross-sectional view taken along line 11 a in FIG. 11,depicting the end portion 348 extending into the through hole 329 overthe ledge 326 in the fully engaged position. The floor 322 of the recessmay slope upwardly to provide an increasing biasing force on the biasingmember 346 as the extension member 340 and memory card 310 are slidablyengaged and moved together so that the end portions 348 snap into thethrough holes 329 to, thereby, removably interconnect the memory card310 with the extension member 340. The end portions 348 include an innersurface 349 which is configured so that when a separating force F_(S) isapplied to separate the memory card 310 and extension member 340 (asindicated by the arrows in FIG. 11), such inner surface 349 is angledsuch that it slidably engages with the ledge 326 and moves upward tofree the biasing portions 346 from the front recesses 320. With respectto the biasing portion 346′ corresponding to the back recess 330, suchbiasing portion 346′ may not include an end portion with the pawlstructure but, rather, may comprise a planar portion configured as a tabextending in the plane of extension member 340 to slide on and closelyabut with the floor 332 of the back recess 330 to serve as a guide andprevent flexure of the joined memory card 310 and extension member 340.In this manner, a third embodiment of the present invention provides athree-point contact comprising two points of engagement and an alignmentpoint between the memory card 310 and the extension member 340.

FIGS. 12 and 13 illustrate respective front and back perspective viewsof a fourth embodiment of the locking mechanism in the memory card,depicting two front recesses 420 and one back recess 430 in therespective front surface 412 and back surface 414 of the memory card410. Terminals 418 reside on front surface 412. The front recesses 420are provided partially in a peripheral side 416 and partially in thefront surface 412, wherein the front recesses 420 may include a floor422 extending to a back wall 428 between two lateral side walls 424.Similarly, the back recess 430 is provided partially in the peripheralside 416 and the back surface 414, wherein the back recess 430 mayinclude a floor 432 extending to a back wall 438 between two lateralside walls 434. The back recess 430 is centrally located at an endportion of the memory card 410 between the two front recesses 420 on theopposing front surface 412.

According to the fourth embodiment, each of the front recesses 420 mayinclude a cavity 429 defined in one of the lateral side walls 424proximate the back wall 428. More specifically, the inner one of thelateral side walls 424 extends toward the back wall 428 to a ledge 426,which extends into the cavity 429 proximate the back wall 428. Suchcavity 429 is sized and configured to removably interconnect to anextension member 440.

FIG. 14 illustrates an extension member 440 configured and positionallyaligned to interconnect with the memory card 410 of the fourthembodiment. The extension member 440 includes a first surface 442 andsecond surface 444 with biasing portions 446 extending from a peripheralside 445 thereof. The biasing portions 446 include end portions 448structured as a protrusion, extending from an inside end surface 447 ofthe biasing portion 446. By applying an attaching force F_(A), thememory card 410 and extension member 440 are movable to the fullyengaged position, wherein the end portions 448 are sized and configuredto slidably engage with the inner ones of the lateral side walls 424while the biasing portions 446 flex outward in a resilient manner, asindicated by arrows A, during such slidable engagement. The biasingportions 446 continue in the flexed position while slidably engaging theinner ones of the lateral side walls 424 until the end portions 448 moveover the ledge 426, whereupon the end portions 448 snap into thecavities 429 for removable interconnection with the first recesses 420of the memory card 410. Similar to that described in the earlierembodiments, the end portions 448 include an inner surface 449 angledsuch that the inner surface 449 slidably engages with the ledge 426 andflexes the biasing portions 446 outward when a separating force isapplied to, therefore, easily allow the extension member 440 to separatefrom the memory card 410.

The biasing portion 446 configured to mate with the back recess 430 maybe flexible or substantially rigid. This biasing portion 446 is sizedand configured to slidably engage with the floor 432 of the back recess430 in the manner previously discussed with respect to the thirdembodiment. With the front recesses 420 and back recess 430 of thefourth embodiment, a three-point contact interconnection may be madebetween the memory card 410 and the extension member 440.

FIGS. 15 and 16 illustrate perspective views of a front side surface anda back side surface, respectively, of a fifth embodiment of the lockingmechanism in the memory card 510. In the fifth embodiment, an endportion of the memory card 510 includes a track 520 including a slot 522defined in a peripheral side 516 between a front surface 512 and backsurface 514 of the memory card 510. Terminals 518 reside on frontsurface 512. The slot 522 may extend along a width of the memory card510 and, more particularly, from one peripheral side 516 to an opposingperipheral side 516 at the end portion of the memory card 510. The track520 may also include a track recess 524 running substantially continuousalong the width of the memory card 510. Alternatively, the slot 522 mayextend only a partial distance of the width of the memory card so thatthe slot 522 extends from one peripheral side 516, but terminates beforereaching the opposing peripheral side 516. In this alternative, thetrack recess 524 may substantially extend a width of the slot 522.

FIG. 17 illustrates that the track 520 in the memory card 510 isinterconnectable with a suitably configured extension member 540. Theextension member 540 having a first surface 542 and a second surface 544may include an extension member track 546 formed at a peripheral side545 of the extension member 540. The extension member track 546 mayinclude an end portion 548 structured as a protrusion extending along alateral extent of the end portion 548. The extension member track 546and the end portion 548 thereon is sized and configured to correspondand slidingly fit through the slot 522 and track recess 524 formed inthe end portion of the memory card 510. By this arrangement, theextension member track 546 on the extension member 540 may transverselyslide through the slot 522 so that the end portion 548 aligns with andslidably engages with the track recess 524 in the slot 522, as indicatedby arrows B. The extension member track 546 may include one or more nubs549 that are configured to provide a snug fit between the extensiontrack member 546 and the interior wall of slot 522. Further, the one ormore nubs 549 may correspond to an indent (not shown) defined in asurface of the slot wall to provide a removably secured interconnection.Otherwise, the slot 522 in the memory card 510 may be sized andconfigured so that the extension member track 546 snugly fits therewithto provide the substantially secured interconnection that may be easilyseparated manually. It should be noted that slot 522 may be sized andconfigured to correspond with the extension member track 546 such thatextension member track 546 may include any shape, such as an L-shape,T-shape, dove-tail shape or any suitable shape for providing a removablysecure interconnection.

FIG. 18 depicts an electronic device 600 with a slot 680 sized andconfigured to receive a standard-sized memory card, such as the MMC andMemory Stick. According to the present invention, the memory card 110,210, 310, 410, 510 is removably interconnected to the extension member140, 240, 340, 440, 540 and may be easily insertable into the slot 680and, more importantly, easily removable from the slot 680 due to thelength of the memory card with the extension member interconnectedthereto. Further, as indicated earlier, the extension member may beremoved from the memory card and inserted into an electronic deviceconfigured with an ultra compact reduced-sized socket.

As illustrated in block diagram form in drawing FIG. 19, a reduced-sizememory card 110, 210, 310, 410 or 510 in combination with a respectiveextension member 140, 240, 340, 440 or 540 of the present invention maybe inserted in a standard-sized or reduced-sized socket 710 in anelectronic device or system 700. In the electronic system 700, thememory card and its respective socket 710 may be interconnected to aprocessor device 720 which communicates with an input device 730 and anoutput device 740. The input device 730 may comprise a keyboard, mouse,joystick, input buttons or any other type of electronic input device.The output device 740 may comprise a monitor or any type of display,printer, or any other type of output device. The processor device 720may be, but is not limited to, a microprocessor or a circuit cardincluding hardware for processing instructions for the electronic system700. Additional structure for the electronic system 700 is readilyapparent to those of ordinary skill in the art.

While the present invention has been disclosed in terms of certainpreferred embodiments and alternatives thereof, those of ordinary skillin the art will recognize and appreciate that the invention is not solimited. Additions, deletions and modifications to the disclosedembodiments may be effected without departing from the scope of theinvention as claimed herein. Similarly, features from one embodiment maybe combined with those of another while remaining within the scope ofthe invention. For example, the extension member track formed on theextension member may, alternatively, be formed on an end portion of thememory card. Likewise, the slot formed in the memory card mayalternatively be formed in the extension member for removableinterconnection similar to that described in FIG. 17.

1. A card package configured to removably interconnect to an extensionmember, the card package comprising: a memory card including a firstsurface, a second surface and a peripheral side defining a thicknessbetween the first surface and the second surface, one of the firstsurface and the second surface having a plurality of terminals exposedthereon, the terminals interconnecting with at least one integratedcircuit within the memory card; and a locking mechanism including atleast one recess in the first surface at an end portion of the memorycard and at least one recess in the second surface at the end portion ofthe memory card, the at least one recess in the first surface includingan entry surface and a ledge, the entry surface substantially extendingfrom the peripheral side to the ledge, the entry surface configured toslidably receive at least one biasing portion of the extension memberand the ledge configured to removably engage the at least one biasingportion of the extension member.
 2. The package of claim 1, wherein theentry surface comprises a ramp extending to the ledge.
 3. The package ofclaim 1, wherein the entry surface comprises a substantiallyprotrusion-free surface.
 4. The package of claim 1, wherein the entrysurface comprises a substantially unobstructed surface.
 5. The packageof claim 1, wherein the at least one recess in the first surfacecomprises at least one floor, two lateral side walls, a ledge wall and aback wall, and wherein the at least one floor includes the entrysurface, the entry surface extending laterally between the two lateralside walls.
 6. The package of claim 5, wherein the at least one floorcomprises a lower floor and the entry surface, and wherein the lowerfloor extends below the ledge from the ledge wall.
 7. The package ofclaim 5, wherein the ledge wall is configured to removably engage an endof the at least one biasing portion of the extension member.
 8. Thepackage of claim 5, wherein the at least one recess in the first surfacecomprises a through hole defined by a back portion of the two lateralside walls, the ledge wall and the back wall, and wherein the throughhole is configured to receive an end of the at least one biasing portionof the extension member.
 9. The package of claim 8, wherein the at leastone recess in the second surface comprises a continuous, substantiallyplanar surface for slidably engaging with another one of the at leastone biasing portion of the extension member.
 10. The package of claim 1,wherein the at least one recess in the second surface includes an entrysurface and a ledge, the entry surface in the second surfacesubstantially extending from the peripheral side to the ledge in thesecond surface, the entry surface configured to slidably receive anotherone of the at least one biasing portion of the extension member and theledge in the second surface configured to removably engage the anotherone of the at least one biasing portion of the extension member.
 11. Thepackage of claim 10, wherein the at least one recess in the secondsurface comprises at least one floor, two lateral side walls, a ledgewall and a back wall, wherein the at least one floor includes the entrysurface in the second surface, the entry surface in the second surfaceextending laterally between the two lateral side walls.
 12. The packageof claim 10, wherein the entry surface in the at least one recess of thesecond surface comprises a ramp extending to the ledge in the secondsurface.
 13. The package of claim 10, wherein the entry surface in theat least one recess of the second surface comprises a substantiallyprotrusion-free surface.
 14. The package of claim 10, wherein the entrysurface in the second surface comprises a substantially unobstructedsurface.
 15. The package of claim 1, wherein the at least one recess inthe first surface comprises a floor and at least one side wall having acavity therein configured to receive a distal end of the at least onebiasing portion of the extension member, the entry surface comprisingthe at least one side wall.
 16. The package of claim 1, wherein thememory card comprises a polymeric material substantially enclosing theat least one integrated circuit therein.
 17. A card package selectablyremovably interconnectable with a standard-sized socket and areduced-sized socket, the card package comprising: a memory cardincluding a first surface, a second surface and a peripheral side havinga thickness defined between the first surface and the second surface,one of the first surface and the second surface having a plurality ofterminals exposed thereon, the terminals interconnecting with at leastone integrated circuit within the memory card, the memory card sized andconfigured to interconnect with the reduced-sized socket; an extensionmember including a first surface, a second surface and a peripheral sidetherebetween, the peripheral side having at least one biasing portionprojecting therefrom in a plane of the extension member; and a lockingmechanism formed in the memory card, the locking mechanism including atleast one recess in the first surface at an end portion of the memorycard and at least one recess in the second surface at the end portion ofthe memory card, the at least one recess in the first surface includingan entry surface and a ledge, the entry surface substantially extendingfrom the peripheral side to the ledge, the entry surface configured toslidably engage with the at least one biasing member of the extensionmember and the ledge configured to removably interconnect the at leastone biasing portion of the extension member.
 18. The package of claim17, wherein the entry surface comprises a ramp extending to the ledge.19. The package of claim 17, wherein the entry surface comprises asubstantially protrusion-free surface.
 20. The package of claim 17,wherein the entry surface comprises a substantially unobstructedsurface.
 21. The package of claim 17, wherein the at least one recess ofthe first surface comprises at least one floor, two lateral side walls,a ledge wall and a back wall, and wherein the at least one floorincludes the entry surface, the entry surface extending laterallybetween the two lateral side walls.
 22. The package of claim 21, whereinthe at least one floor comprises a lower floor and the entry surface,and wherein the lower floor extends below the ledge from the ledge wall.23. The package of claim 21, wherein the ledge wall is configured toremovably engage an end of the at least one biasing portion of theextension member.
 24. The package of claim 21, wherein the at least onerecess in the first surface comprises a through hole defined by a backportion of the two lateral side walls, the ledge wall and the back wall,and wherein the through hole is configured to receive an end of the atleast one biasing portion of the extension member.
 25. The package ofclaim 24, wherein the at least one recess in the second surfacecomprises a substantially planar surface for slidably engaging withanother one of the at least one biasing portion of the extension member.26. The package of claim 17, wherein the at least one recess in thesecond surface includes an entry surface and a ledge, the entry surfacein the second surface substantially extending from the peripheral sideto the ledge in the second surface, the entry surface configured toslidably engage with another one of the at least one biasing portion ofthe extension member and the ledge configured to removably engage theanother one of the at least one biasing portion of the extension member.27. The package of claim 26, wherein the at least one recess in thesecond surface comprises at least one floor, two lateral side walls, aledge wall and a back wall, wherein the at least one floor includes theentry surface, the entry surface extending laterally between the twolateral side walls.
 28. The package of claim 26, wherein the entrysurface in the at least one recess in the second surface comprises aramp extending to the ledge in the second surface.
 29. The package ofclaim 26, wherein the entry surface in the at least one recess in thesecond surface comprises a substantially protrusion-free surface. 30.The package of claim 26, wherein the entry surface comprises asubstantially unobstructed surface.
 31. The package of claim 17, whereinthe at least one recess in the first surface comprises a floor and atleast one side wall, the entry surface comprising the at least one sidewall.
 32. The package of claim 17, wherein the memory card comprises apolymeric material substantially enclosing the at least one integratedcircuit therein.
 33. The package of claim 17, wherein the at least onebiasing portion comprises at least one of a polymeric material and aspring steel material.
 34. The package of claim 17, wherein the at leastone biasing portion comprises a resilient flexible material.
 35. Amethod of forming a card package for removably securing to an extensionmember, the method comprising: forming a memory card including a firstsurface, a second surface and a peripheral side defining a thicknessbetween the first surface and the second surface, one of the firstsurface and the second surface having a plurality of terminals exposedthereon, the terminals interconnecting with at least one integratedcircuit within the memory card; forming a locking mechanism in thememory card including at least one recess in the first surface at an endportion of the memory card and at least one recess in the second surfaceat the end portion of the memory card; and configuring the at least onerecess in the first surface including an entry surface and a ledge, theentry surface substantially extending from the peripheral side to theledge, the entry surface configured to slidably receive at least onebiasing portion of the extension member and the ledge configured toremovably engage the at least one biasing portion of the extensionmember.
 36. The method of claim 35, wherein the configuring comprisesconfiguring the entry surface to include a ramp extending to the ledge.37. The method of claim 35, wherein the configuring comprisesconfiguring the entry surface with a substantially protrusion-freesurface.
 38. The method of claim 35, wherein the configuring comprisesconfiguring the entry surface with a substantially unobstructed surface.39. The method of claim 35, wherein the configuring comprisesconfiguring the at least one recess in the first surface to include atleast one floor, two lateral side walls, a ledge wall and a back wall,and wherein the at least one floor includes the entry surface, the entrysurface extending laterally between the two lateral side walls.
 40. Themethod of claim 39, wherein the configuring the at least one floorcomprises configuring the at least one floor to include a lower floorand the entry surface, and wherein the lower floor extends below theledge from the ledge wall.
 41. The method of claim 39, wherein theconfiguring further comprises configuring the ledge wall to removablyengage an end of the at least one biasing portion of the extensionmember.
 42. The method of claim 39, wherein the configuring furthercomprises configuring a through hole in the at least one recess in thefirst surface defined by a back portion of the lateral side walls, theledge wall and the back wall, and configuring the through hole forreceiving an end of the at least one biasing portion of the extensionmember.
 43. The method of claim 42, wherein the forming the at least onerecess in the second surface comprises configuring the at least onerecess in the second surface with a continuous, substantially planarsurface for slidably engaging with another one of the at least onebiasing portion of the extension member.
 44. The method of claim 35,wherein the forming the at least one recess in the second surfacecomprises forming an entry surface and a ledge in the second surface,the entry surface in the second surface substantially extending from theperipheral side to the ledge in the second surface, the entry surface inthe second surface configured to slidably engage with another one of theat least one biasing portion of the extension member and the ledge inthe second surface configured to removably engage the another one of theat least one biasing portion of the extension member.
 45. The method ofclaim 44, wherein the forming the at least one recess in the secondsurface comprises forming at least one floor, two lateral side walls, aledge wall and a back wall, wherein the at least one floor includes theentry surface in the second surface, the entry surface in the secondsurface extending laterally between the two lateral side walls.
 46. Themethod of claim 44, wherein the forming the entry surface in the secondsurface comprises extending a ramp to the ledge in the second surface.47. The method of claim 44, wherein the forming the entry surface in thesecond surface comprises configuring the entry surface in the secondsurface with a substantially protrusion-free surface.
 48. The method ofclaim 44, wherein the forming the entry surface in the second surfacecomprises configuring the entry surface in the second surface with asubstantially unobstructed surface.
 49. The method of claim 35, whereinthe forming the at least one recess in the first surface comprisesforming a floor and at least one side wall having a cavity thereinconfigured to receive a distal end of the at least one biasing portionof the extension member, the entry surface comprising the at least oneside wall.
 50. The method of claim 35, wherein the forming the memorycard comprises forming the memory card from a polymeric materialsubstantially enclosing the at least one integrated circuit therein. 51.A method of removably interconnecting an adaptor to a reduced-sized cardpackage to fit in a standard-sized socket, the method comprising:providing a memory card including a first surface, a second surface anda peripheral side defining a thickness between the first surface and thesecond surface, one of the first surface and the second surface having aplurality of terminals exposed thereon, the terminals interconnectingwith at least one integrated circuit within the memory card, the memorycard including at least one recess in the first surface at an endportion of the memory card and at least one recess in the second surfaceat the end portion of the memory card, the at least one recess in thefirst surface including an entry surface and a ledge, the entry surfacesubstantially extending from the peripheral side to the ledge; providingan extension member including a first surface, a second surface and aperipheral side therebetween, the peripheral side having at least onebiasing portion projecting therefrom in a plane of the extension member;and removably interconnecting the extension member to the memory card byslidably engaging the at least one biasing portion over the entrysurface from the peripheral side of the memory card toward the ledge sothat a portion of the at least one biasing portion slidably snaps overthe ledge.
 52. The method of claim 51, wherein the providing theextension member comprises configuring the at least one biasing portionwith an end protrusion for slidably biasing with the entry surface andfor removably interconnecting with the ledge.
 53. The method of claim52, wherein the configuring the end protrusion comprises configuring theend protrusion with at least one of a rounded portion and a pawlportion.
 54. The method of claim 51, wherein the removablyinterconnecting comprises aligning the at least one biasing portion withthe entry surface in a pre-interconnection position.
 55. The method ofclaim 51, wherein the removably interconnecting comprises slidablyengaging the at least one biasing portion with the entry surface so thatthe entry surface exerts a biasing force on the at least one biasingportion.
 56. The method of claim 55, wherein the providing the memorycard comprises configuring the entry surface as a ramp so that as the atleast one biasing portion slidably engages the entry surface, theexerted biasing force increases from the peripheral side of the memorycard to the ledge.
 57. The method of claim 55, wherein the providing thememory card comprises configuring the entry surface as a substantiallyprotrusion-free surface.
 58. The method of claim 55, wherein theproviding the memory card comprises configuring the entry surface as asubstantially smooth surface.
 59. The method of claim 51, wherein theremovably interconnecting further comprises removing the memory cardfrom the extension member.
 60. An electronic system comprising: aprocessor device coupled to an input device and an output device; and acard package coupled to at least one of the processor device, the inputdevice and the output device, the card package configured to removablyinterconnect with an extension member having at least one biasingportion, the card package comprising: a memory card including a firstsurface, a second surface and a peripheral side defining a thicknessbetween the first surface and the second surface, one of the firstsurface and the second surface having a plurality of terminals exposedthereon, the terminals interconnecting with at least one integratedcircuit within the memory card; and a locking mechanism including atleast one recess in the first surface at an end portion of the memorycard and at least one recess in the second surface at the end portion ofthe memory card, the at least one recess in the first surface includingan entry surface and a ledge, the entry surface substantially extendingfrom the peripheral side to the ledge, the entry surface configured toslidably engage with at least one biasing portion of the extensionmember and the ledge configured to removably engage the at least onebiasing portion of the extension member.
 61. The electronic system ofclaim 60, wherein the entry surface comprises a ramp extending to theledge.
 62. The electronic system of claim 60, wherein the entry surfacecomprises a substantially protrusion-free surface.
 63. The electronicsystem of claim 60, wherein the entry surface comprises a substantiallyunobstructed surface.
 64. The electronic system of claim 60, wherein theat least one recess in the first surface comprises at least one floor,two lateral side walls, a ledge wall and a back wall, and wherein the atleast one floor includes the entry surface, the entry surface extendinglaterally between the two lateral side walls.
 65. The electronic systemof claim 64, wherein the at least one floor comprises a lower floor andthe entry surface, and wherein the lower floor extends below the ledgefrom the ledge wall.
 66. The electronic system of claim 64, wherein theledge wall is configured to removably engage an end of the at least onebiasing portion of the extension member.
 67. The electronic system ofclaim 64, wherein the at least one recess in the first surface comprisesa through hole defined by a back portion of the two lateral side walls,the ledge wall and the back wall, and wherein the through hole isconfigured to receive an end of the at least one biasing portion of theextension member.
 68. The electronic system of claim 67, wherein the atleast one recess in the second surface comprises a substantially planarsurface for slidably engaging with another one of the at least onebiasing portion of the extension member.
 69. The electronic system ofclaim 60, wherein the at least one recess in the second surface includesan entry surface and a ledge, the entry surface in the second surfacesubstantially extending from the peripheral side to the ledge in thesecond surface, the entry surface in the second surface configured toslidably engage with another one of the at least one biasing portion ofthe extension member and the ledge in the second surface configured toremovably secure the another of the at least one biasing portion of theextension member.
 70. The electronic system of claim 69, wherein the atleast one recess in the second surface comprises at least one floor, twolateral side walls, a ledge wall and a back wall, wherein the at leastone floor includes the entry surface in the second surface, the entrysurface in the second surface extending laterally between the twolateral side walls.
 71. The electronic system of claim 69, wherein theentry surface of the at least one recess in the second surface comprisesa ramp extending to the ledge in the second surface.
 72. The electronicsystem of claim 69, wherein the entry surface of the at least one recessin the second surface comprises a substantially protrusion-free surface.73. The electronic system of claim 69, wherein the entry surface in thesecond surface comprises a substantially unobstructed surface.
 74. Theelectronic system of claim 60, wherein the at least one recess in thefirst surface comprises a floor and at least one side wall having acavity therein configured to receive a distal end of the at least onebiasing portion of the extension member, the entry surface comprisingthe at least one side wall.
 75. The electronic system of claim 60,wherein the memory card comprises a polymeric material substantiallyenclosing the at least one integrated circuit therein.